import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.*;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class shiLi5 {
    public static void main(String[] args) {
       try {
           DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

           DocumentBuilder db  = dbf.newDocumentBuilder();

           Document doc  = db.parse("src/shiLi1.xml");

           NodeList list = doc.getElementsByTagName("Brand");
           for (int i = 0; i < list.getLength(); i++) {
               Element brandElement = (Element) list.item(i);
               String brandName = brandElement.getAttribute("name");
               if (brandName.equals("三星")) {
                   brandElement.setAttribute("name","SANSYNG");
               }
           }
           //保存XML文件
           TransformerFactory transformerFactory = TransformerFactory.newInstance();
           Transformer transformer = transformerFactory.newTransformer();

           DOMSource domSource = new DOMSource(doc);
            //设置编码类型
           transformer.setOutputProperty(OutputKeys.ENCODING,"UTF-8");

           StreamResult result = new StreamResult(new FileOutputStream("src/shiLi1.xml"));
            //把DOM树转换为XML文件
           transformer.transform(domSource,result);
       } catch (TransformerConfigurationException e) {
           e.printStackTrace();
       } catch (FileNotFoundException e) {
           e.printStackTrace();
       } catch (ParserConfigurationException e) {
           e.printStackTrace();
       } catch (IOException exception) {
           exception.printStackTrace();
       } catch (TransformerException e) {
           e.printStackTrace();
       } catch (SAXException e) {
           e.printStackTrace();
       }
    }
}
